1. The Hierarchical Hub Median Problem with Single AssignmentHande Yaman Bilkent University, Department of Industrial Engineering Bilkent 06800 Ankara, Turkey. e-mail: [email protected]…
ema ork t , the nspo e hub s are is no on at most three links traversing at most two hubs. Usually, the routing cost between two hub nodes is discounted at a rate of a to…